A reactor split bolt stretcher transfer system and method

Abstract

This invention provides a reactor segmented bolt tensioning machine transfer system and method, belonging to the technical field of reactor transfer devices, to solve the problems of long time consumption and low equipment utilization in existing reactor segmented bolt tensioning machine transfer systems. The reactor segmented bolt tensioning machine transfer system includes: a indexable transfer device with multiple workstations for segmented bolt tensioning machines; a nuclear island hoist connected to the indexable transfer device for lifting and moving the indexable transfer device; the indexable transfer device transfers multiple segmented bolt tensioning machines to the reactor pressure vessel, ensuring that the segmented bolt tensioning machines are located within the reachable working area of ​​the reactor pressure vessel's cantilever crane, and the cantilever crane is relatively movable relative to the outer periphery of the reactor pressure vessel. This system can improve equipment utilization, optimize the lifting process, shorten critical overhaul time, and effectively reduce personnel radiation exposure.

Description

Technical Field

[0001] This invention relates to a reactor segment bolt tensioning machine transfer system and a reactor segment bolt tensioning machine transfer method. Background Technology

[0002] In existing technologies, during overhauls of AP and CAP series nuclear power units, multiple segmented bolt tensioning machines need to be moved between the reactor pressure vessel during opening and closing operations. Due to the limitations of the reactor top IHP structure (larger at the top and smaller at the bottom) and the layout of the reactor top cantilever ring cranes, the lifting and transfer area covered by the nuclear island ring crane and the reactor top cantilever ring cranes is small, only able to accommodate one segmented bolt tensioning machine at a time. This results in the nuclear island ring crane being able to lift only one segmented bolt tensioning machine at a time, leading to long crane downtime and low work efficiency. Furthermore, because the nuclear island ring crane can only lift one segmented bolt tensioning machine at a time, only one of the three reactor top cantilever ring cranes can perform lifting work, leaving the others idle, resulting in extremely low utilization of the reactor top cantilever ring cranes. These two factors lead to extremely long overhaul critical paths (i.e., the opening / closing process), significantly increasing the cumulative radiation dose to operators and overhaul costs. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a reactor segment bolt tensioning machine transfer system and method to solve the problems of long time consumption in the critical path of overhaul in the nuclear island (i.e., the opening / closing process), long time occupied by the nuclear island ring crane, low utilization rate of the reactor top cantilever crane, and large cumulative radiation dose to operators.

[0004] To solve the above-mentioned technical problems, the technical solution of the present invention is as follows:

[0005] A reactor segment bolt tensioning machine transfer system includes:

[0006] The indexable transfer device has multiple workstations for the split bolt tensioning machine;

[0007] A nuclear island ring crane connected to the indexable transfer device is used to lift and move the indexable transfer device;

[0008] The indexable transfer device transfers multiple segmented bolt tensioning machines to the reactor pressure vessel, so that the segmented bolt tensioning machines are located in the reachable working area of ​​the reactor pressure vessel's cantilever crane, and the cantilever crane is set to move relative to the outer periphery of the reactor pressure vessel.

[0009] Optionally, the indexable transfer device includes:

[0010] Slewing platform components;

[0011] The bottom support component is located below the rotary platform component and is rotatably connected to the rotary platform component.

[0012] Optionally, the indexable transfer device further includes: a lifting device fixed above the rotary platform assembly, the lifting device comprising:

[0013] A lifting device base, wherein the lifting device base is provided with lifting holes;

[0014] At least one tie rod, the first end of which is connected to the spreader seat, and the second end of which is connected to the rotary platform assembly.

[0015] Optionally, the tie rod includes multiple tie rods, with the second end of each tie rod evenly distributed on the upper surface of the rotary platform assembly.

[0016] Optionally, the first end of the pull rod is connected to the spreader seat via a first connecting buckle, and the second end of the pull rod is connected to the rotary platform assembly via a second connecting buckle.

[0017] Optionally, the slewing platform assembly and the bottom support assembly are rotatably connected via a slewing support member.

[0018] Optionally, the reactor pressure vessel includes:

[0019] The cantilever crane is designed to move relative to the reactor vessel around its circumference.

[0020] Top cover flange;

[0021] The main bolts located on the top cover flange are used to install and fix the segmented bolt tensioning machine.

[0022] Optionally, the slewing support is a slewing bearing or a multi-roller assembly.

[0023] Optionally, the upper end of the split bolt tensioning machine is provided with a lifting ring.

[0024] A method for transferring a segmented bolt tensioning machine, employing the aforementioned reactor segmented bolt tensioning machine transfer system, the method comprising:

[0025] The indexable transfer device is lifted to the predetermined area of ​​the reactor pressure vessel using a ring crane on the nuclear island.

[0026] Multiple segmented bolt tensioning machines are transferred to the reactor pressure vessel via a rotatable transfer device, so that the segmented bolt tensioning machines are located in the reachable working area of ​​the reactor pressure vessel's jib crane, and the jib crane is set to move relative to the outer periphery of the reactor pressure vessel.

[0027] The above-mentioned solution of the present invention includes at least the following beneficial effects: In the reactor segmented bolt tensioning machine transfer system of the present invention, the indexable transfer device has a multi-station rotatable function, which can lift multiple segmented bolt tensioning machines to the reactor top cantilever ring crane operation area at one time through the nuclear island ring crane, reducing the frequency and time occupied by the nuclear island ring crane operation; the indexable transfer device has an indexing function, and the cantilever crane is set to move relative to the outer periphery of the reactor pressure vessel. When one cantilever crane lifts away one segmented bolt tensioning machine, the indexable transfer device rotates another segmented bolt tensioning machine to the reachable range of the cantilever crane, and another cantilever crane can then lift away the next segmented bolt tensioning machine. Through the indexing function, multiple segmented bolt tensioning machines are sequentially distributed to multiple reactor top cantilever cranes, improving the utilization rate of multiple cantilever cranes, significantly improving equipment utilization, optimizing the lifting process, shortening the critical time of major overhaul, and effectively reducing personnel radiation dose. Attached Figure Description

[0028] Figure 1 This is a three-dimensional structural schematic diagram of the indexable transfer device of the present invention;

[0029] Figure 2 This is a three-dimensional structural diagram of the lifting device assembly of the present invention;

[0030] Figure 3 This is a three-dimensional structural diagram of the rotary platform component of the present invention;

[0031] Figure 4 This is a three-dimensional structural diagram of the bottom support component of the present invention;

[0032] Figure 5 This is a schematic diagram showing the connection between the rotary platform assembly and the bottom support assembly of the present invention;

[0033] Figure 6 This is a schematic diagram of the fully loaded operating condition of the indexable transfer device of the present invention;

[0034] Figure 7 This is a three-dimensional structural diagram of the reactor pressure vessel and nuclear island ring lifting device of the present invention;

[0035] Figure 8 This is a top view of the reactor pressure vessel and nuclear island ring lifting structure of the present invention;

[0036] Figure label:

[0037] 1-Reactor pressure vessel; 11-Split bolt tensioning machine; 12-Cantilever crane; 13-Top cover flange; 14-Main bolt; 2-Indexing transfer device; 21-Lifting tool assembly; 211-Lifting tool base; 212-First connecting buckle; 213-Tie rod; 214-Second connecting buckle; 215-Pin; 216-Lifting lug; 22-Slewing platform assembly; 221-Mounting base; 222-Positioning base; 223-Level; 224-Platform lifting hole; 23-Bottom support assembly; 231 - Base; 232 - Outrigger assembly; 2321 - Outrigger; 2322 - Adjustment seat; 233 - Foot pad; 24 - Slewing support; 241 - Outer ring of support; 242 - Inner ring of support; 243 - First flange bolt; 244 - Second flange bolt; 3 - Nuclear island ring crane; 4 - Cantilever crane reachable working area; 5 - Overlapping working area of ​​nuclear island ring crane and cantilever crane; 6 - Partial reachable working area of ​​nuclear island ring crane; 7 - Maximum slewing diameter of transfer device; 8 - Lifting point; 9 - Maximum working range of cantilever crane. Detailed Implementation

[0038] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0039] like Figure 1 and Figure 7 As shown, an embodiment of the present invention provides a reactor segment bolt tensioning machine transfer system, comprising:

[0040] The indexable transfer device 2 has multiple workstations for the split bolt tensioning machine 11;

[0041] The nuclear island hoist 3, connected to the indexable transfer device 2, is used to lift and move the indexable transfer device 2.

[0042] The indexable transfer device 2 transfers multiple segmented bolt tensioning machines 11 to the reactor pressure vessel 1, so that the segmented bolt tensioning machines 11 are located in the working area accessible by the cantilever crane 12 of the reactor pressure vessel 1, and the cantilever crane 12 is relatively movable to the outer periphery of the reactor pressure vessel 1; the cantilever crane 12 can move around the outer periphery of the reactor pressure vessel 1.

[0043] In one embodiment, the indexable transfer device 2 includes:

[0044] Slewing platform component 22;

[0045] The bottom support component 23 is located below the rotary platform component 22 and is rotatably connected to the rotary platform component 22.

[0046] For example, the indexable transfer device 2 further includes: a lifting device assembly 21 fixed above the rotary platform assembly 22, the lifting device assembly 21 being used to lift the entire indexable transfer device 2, the lifting device assembly 21 including: a lifting device base 211, the lifting device base 211 being provided with a lifting hole, the lifting hole being used to connect with the hook of the nuclear island ring crane 3; at least one tie rod 213, the first end of the tie rod 213 being connected to the lifting device base 211, and the second end of the tie rod 213 being connected to the rotary platform assembly 22.

[0047] To improve the stability of the indexable transfer device 2 when it is lifted, the lifting assembly 21 includes a plurality of tie rods 213, the second end of each tie rod 213 being evenly distributed on the upper surface of the rotary platform assembly 22.

[0048] For example, such as Figure 2 As shown, the first end of the pull rod 213 is connected to the lifting seat 211 via the first connecting buckle 212, and the second end of the pull rod 213 is connected to the rotary platform assembly 22 via the second connecting buckle 214.

[0049] For example, the first connecting buckle 212 and the second connecting buckle 214 are respectively hinged to the lifting seat 211 and the rotary platform assembly 22 via pins.

[0050] For example, the lifting bracket 211 is provided with a lifting lug 216, and the first connecting buckle 212 is hinged to the lifting lug 216 by a pin 215.

[0051] For example, such as Figure 3 and Figure 5 As shown, the indexable transfer device 2 further includes a rotary support 24 located between the rotary platform assembly 22 and the bottom support assembly 23. The rotary platform assembly 22 is rotatably connected to the bottom support assembly 23 via the rotary support 24. The rotary support 24 enables relative rotation between the rotary platform assembly 22 and the bottom support assembly 23.

[0052] In this invention, the rotary platform assembly 22 is used to position and store the split bolt tensioning machine 11, and the rotary platform assembly 22 has multiple workstations and is operable, which can realize the storage, transfer and hoisting workstation conversion of multiple split bolt tensioning machines 11 at one time.

[0053] For example, the split bolt tensioning machine 11 on the indexable transfer device 2 has n stations, where 2≤n≤6.

[0054] For example, such as Figure 3 As shown, the rotary platform component 22 includes:

[0055] Mounting base 221, which is rotatably connected to the bottom support assembly 23 via the slewing support member 24; and a plurality of positioning seats 222 disposed on the upper surface of the mounting base 221.

[0056] The mounting base 221 is used to place the segmented bolt tensioning machine 11. For example, the shape of the mounting base 221 may be circular or polygonal, so as to place multiple segmented bolt tensioning machines 11.

[0057] For example, the mounting base 221 is hexagonal in shape.

[0058] For example, the mounting base 221 is provided with a platform hoisting hole 224 corresponding to the pull rod 213, and the second connecting buckle 214 is hinged to the platform hoisting hole 224 of the mounting base 221 by a pin 215.

[0059] The positioning seat 222 is used for guiding and positioning the segmented bolt tensioning machine 11 during placement. For example, multiple positioning seats 222 are provided at each station where the segmented bolt tensioning machine 11 is placed to ensure the stability of the placement of the segmented bolt tensioning machine 11.

[0060] The rotary platform assembly 22 further includes a level 223 mounted on the mounting base 221. The level 223 is fixed on the mounting base 221 and is used to observe the verticality of the rotation axis of the rotary platform assembly 22.

[0061] In this invention, the bottom support component 23 is located below the rotary platform component 22 and is rotatably connected to the rotary platform component 22 via the rotary support component 24, and is used to support the entire device.

[0062] For example, such as Figure 4 As shown, the bottom support assembly 23 includes:

[0063] Base 231, the mounting base 221 is rotatably connected to the base 231 via the rotary support 24;

[0064] Multiple support leg assemblies 232 are evenly arranged on the lower surface of the base 231;

[0065] For example, the outrigger assembly 232 includes outriggers 2321 and adjustment seats 2322 disposed at the ends of outriggers 2321. The outriggers 2321 are evenly distributed and fixedly connected to the base 231. The adjustment seats 2322 are connected to the outriggers 2321 by threaded connections. The operator adjusts the height of the outrigger assembly 232 and observes it by a level 223 fixed on the mounting base 221 to keep the axis of rotation of the rotary platform assembly 22 perpendicular to the ground on uneven ground, thereby reducing the resistance torque when rotating.

[0066] To avoid the risk of damaging the steel cladding of the stack pit and the lifting segmented bolt tensioning machine 11, the bottom support assembly 23 also includes a foot pad 233 located at the end of the adjustment seat 2322.

[0067] The foot pad 233 is made of non-metallic material and is connected to the adjustment seat 2322. It is used to protect the steel lining of the RPV stack pit and avoid the risk of damaging the steel lining of the stack pit and the object being lifted during the hoisting process.

[0068] In this invention, the slewing support 24 is used to connect the slewing platform assembly 22 and the bottom support assembly 23 and enable the slewing platform assembly 22 and the bottom support assembly 23 to rotate relative to each other.

[0069] For example, the slewing support 24 is a slewing bearing or a multi-roller assembly.

[0070] For example, such as Figure 5 As shown, the rotary support 24 includes an outer support ring 241, an inner support ring 242, and a ball bearing. The ball bearing is located between the outer support ring 241 and the inner support ring 242, thereby enabling the outer support ring 241 and the inner support ring 242 to rotate relative to each other.

[0071] For example, the outer support ring 241 is fixedly connected to the mounting base 221 by a first flange bolt 243, and the inner support ring 242 is fixedly connected to the base 231 by a second flange bolt 244. This allows the mounting base 221 and the base 231 to rotate relative to each other, thereby enabling the split bolt tensioning machine 11 on the mounting base 221 to rotate.

[0072] To prevent the split bolt tensioning machine from falling off the indexable transfer device 2 during the transfer process, the indexable transfer device 2 also includes an anti-fall tie rod set on the rotary platform assembly 22. The anti-fall tie rod is used to connect and fix the split bolt tensioning machine. For example, the anti-fall tie rod is a rope.

[0073] In one embodiment, the reactor pressure vessel 1 further includes:

[0074] The cantilever crane 12 is circumferentially movable relative to the reactor vessel; the top cover flange 13; the main bolts 14 located on the top cover flange 13 are used to install and fix the segmented bolt tensioning machine 11.

[0075] For example, the upper end of the split bolt tensioning machine 11 is provided with a lifting ring, which is used to connect with the hook of the cantilever crane 12.

[0076] For example, three cantilever cranes 12 are provided on the reactor pressure vessel 1.

[0077] Another embodiment of the present invention provides a method for transferring a segmented bolt tensioning machine, employing the above-mentioned reactor segmented bolt tensioning machine transfer system, the method comprising:

[0078] The indexable transfer device 2 is lifted to the preset range of the reactor pressure vessel 1 by the nuclear island ring crane 3;

[0079] Multiple segmented bolt tensioning machines 11 are transferred to the reactor pressure vessel 1 by a transferable transfer device 2, so that the segmented bolt tensioning machines 11 are located in the working area accessible by the cantilever crane 12 of the reactor pressure vessel 1, and the cantilever crane 12 is set to move relative to the outer periphery of the reactor pressure vessel 1.

[0080] Figure 8 A top view of the present invention under working conditions is shown, wherein the maximum slewing diameter 7 of the transfer device is the outer diameter of the mounting base, the lifting point 8 is the position of the lifting device seat, and the maximum working range 9 of the cantilever crane is equivalent to Figure 7 The cantilever crane can reach the working area 4.

[0081] Embodiments of the present invention provide a method for transferring a segmented bolt tensioner from the reactor pit back to the reactor pressure vessel, employing the aforementioned reactor segmented bolt tensioner transfer system, such as... Figure 7 As shown, the method includes:

[0082] The nuclear island hoist 3 lifts the indexable transfer device 2 carrying the split bolt tensioner 11 to the steel cladding surface of the reactor pit RPV, so that the position of one of the split bolt tensioners 11 on the indexable transfer device 2 is rotated to the reach of the cantilever crane 12, and the cantilever crane 12 lifts the split bolt tensioner 11 from the indexable transfer device 2 to the reactor pressure vessel 1.

[0083] Rotate the indexable transfer device 2 so that the position of another split bolt tensioning machine 11 on the indexable transfer device 2 is rotated to the reach of the cantilever crane 12, and the cantilever crane 12 lifts the split bolt tensioning machine 11 from the indexable transfer device 2 onto the reactor pressure vessel 1.

[0084] In this manner, all the segmented bolt tensioning machines 11 are hoisted onto the reactor pressure vessel 1.

[0085] The following example, using the process of lifting the single-stage segmented bolt tensioning machine 11 from the pile pit to the RPV top cover flange (taking 3 segmented bolt tensioning machines 11 as an example), further illustrates the present invention:

[0086] Outside the crater, typically on a 20-meter platform, the indexable transfer device 2 is loaded. The nuclear island ring crane 3 is used to hoist the three segmented bolt tensioning machines onto the rotating platform assembly 22, and radial positioning is achieved through the positioning seat 222. Then, the anti-fall tie rods are used to radially constrain the top of the three segmented bolt tensioning machines.

[0087] The nuclear island hoist 3 lifts the indexable transfer device 2 and three split bolt tensioning machines 11 from the reactor pit to the RPV reactor pit steel cladding surface, ensuring that any one of the split bolt tensioning machines 11 is within the reach of the RPV reactor top cantilever crane 12; adjust the height of the outrigger assembly 232, observe the level 223 fixed on the mounting base 221, and make the rotation axis of the slewing platform assembly 22 perpendicular to the ground; unlock the anti-fall tie rod assembly of the first split bolt tensioning machine 11, connect the lifting ring of the first reactor top cantilever hoist 12 to the first split bolt tensioning machine 11, and lift the split bolt tensioning machine 11 to the corresponding main bolt 14 of the top cover flange 13; the first split bolt tensioning machine... After bolt tensioning machine 11 is lifted off, the slewing platform assembly 22 is rotated to bring the second segmented bolt tensioning machine 11 within the reach of the top cantilever crane 12. The anti-fall tie rod assembly of the second segmented bolt tensioning machine 11 is unlocked, and the second top cantilever crane 12 lifts the second segmented bolt tensioning machine to the corresponding main bolt 14 of the top cover flange 13. Similarly, the third top cantilever crane 12 lifts the third segmented bolt tensioning machine 11. After all segmented bolt tensioning machines 11 are lifted off, the nuclear island ring crane 3 lifts the unloaded indexable transfer device 2 from the reactor pit to the next loading position, completing one round of lifting operations of segmented bolt tensioning machines 11 to the top cover flange 13.

[0088] The process of removing the split bolt tensioning machine 11 from the top cover flange 13 is the reverse of the above process, as follows:

[0089] The nuclear island hoist 3 lifts the indexable transfer device 2 to the nuclear island hoist reachable working area (partial) 6 on the RPV reactor pit steel cladding surface, causing one of the positions on the indexable transfer device 2 used to place the split bolt tensioning machine 11 to rotate into the reachable range of the cantilever crane 12 (i.e., the nuclear island hoist and cantilever crane reachable working overlap area 5). The cantilever crane 12, within the cantilever crane reachable working area 4, lifts one of the split bolt tensioning machines 11 from the reactor pressure vessel 1 onto the indexable transfer device 2, connects the anti-fall tie rod assembly to the split bolt tensioning machine 11, and locks the anti-fall tie rod assembly. The slewing platform assembly 22 is rotated, causing the next working position of the indexable transfer device 2 to rotate into the reachable range of the reactor top cantilever crane 12, and the second split bolt tensioning machine 11 is lifted to the corresponding working position of the indexable transfer device 2, connected to the anti-fall tie rod assembly, and locked. This process continues until the positions on the indexable transfer device 2 used to place the split bolt tensioning machines 11 are full (e.g., ...). Figure 6 As shown), the nuclear island hoist 3 lifts the indexable transfer device 2, which carries the split bolt tensioning machine 11, to the reactor pit.

[0090] The above description represents the preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A method for transferring components in a split bolt tensioning machine, characterized in that, The reactor segment bolt tensioning machine transfer system used includes: The indexable transfer device (2) has multiple stations for the split bolt tensioning machine (11); The nuclear island hoist (3) is connected to the indexable transfer device (2) and is used to lift and move the indexable transfer device (2). The indexable transfer device (2) transfers multiple split bolt tensioning machines (11) to the reactor pressure vessel (1), so that the split bolt tensioning machine (11) is located in the working area of ​​the cantilever crane (12) of the reactor pressure vessel (1), and the cantilever crane (12) is set to move relative to the outer periphery of the reactor pressure vessel (1). The indexable transfer device (2) includes: Slewing platform component (22); The bottom support assembly (23) is located below the rotary platform assembly (22) and is rotatably connected to the rotary platform assembly (22); the rotary platform assembly (22) and the bottom support assembly (23) are rotatably connected by a rotary support member (24); The slewing platform component (22) includes: Mounting base (221), which is rotatably connected to the bottom support assembly (23) via the slewing support (24); and a plurality of positioning seats (222) disposed on the upper surface of the mounting base (221). The bottom support component (23) includes: The base (231) and the mounting base (221) are rotatably connected to the base (231) via the rotary support (24); Multiple leg assemblies (232) are evenly arranged on the lower surface of the base (231); The slewing support (24) includes: an outer support ring (241), an inner support ring (242), and a ball bearing, wherein the ball bearing is located between the outer support ring (241) and the inner support ring (242); the outer support ring (241) is fixedly connected to the mounting base (221) by a first flange bolt (243), and the inner support ring (242) is fixedly connected to the base (231) by a second flange bolt (244); The reactor pressure vessel (1) includes: Multiple cantilever cranes (12) are arranged to move relative to the reactor vessel in the circumferential direction; Top cover flange (13); The main bolt (14) located on the top cover flange (13) is used to install and fix the split bolt tensioning machine (11). The transfer method includes: The indexable transfer device (2) is lifted to the preset range of the reactor pressure vessel (1) by the nuclear island ring crane (3); Multiple split bolt tensioning machines (11) are transferred to the reactor pressure vessel (1) by a transferable transfer device (2), so that the split bolt tensioning machine (11) is located in the working area of ​​the cantilever crane (12) of the reactor pressure vessel (1), and the cantilever crane (12) is set to move relative to the outer periphery of the reactor pressure vessel (1). After a jib crane (12) lifts away a split bolt tensioning machine (11), the indexable transfer device (2) rotates another split bolt tensioning machine into the reachable range of the jib crane (12), and another jib crane (12) can then lift away the next split bolt tensioning machine (11). Through the indexing function, multiple split bolt tensioning machines (11) are sequentially distributed to multiple stack top jib cranes (12).

2. The transfer method of the split bolt tensioning machine according to claim 1, characterized in that, The indexable transfer device (2) further includes: a lifting device (21) fixed above the rotary platform assembly (22); The lifting device assembly (21) includes: a lifting device seat (211) having a lifting hole; at least one tie rod (213) having a first end connected to the lifting device seat (211) and a second end connected to the rotary platform assembly (22).

3. The transfer method of the split bolt tensioning machine according to claim 2, characterized in that, The tie rod (213) includes a plurality of tie rods (213), the second ends of each tie rod (213) being evenly distributed on the upper surface of the rotary platform assembly (22).

4. The transfer method of the split bolt tensioning machine according to claim 2, characterized in that, The first end of the pull rod (213) is connected to the lifting seat (211) via the first connecting buckle (212), and the second end of the pull rod (213) is connected to the rotary platform assembly (22) via the second connecting buckle (214).

5. The transfer method of the split bolt tensioning machine according to claim 1, characterized in that, The upper end of the split bolt tensioning machine (11) is equipped with a lifting ring.

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